Baker thanks again for the info. I am not a speedster with the Shamrock. The 18 knt cruise she gives me is fine. My fishing buddies with their go fast rigs are always egging me onto push the throttle. She will top out at about 28knts but I never go there. 2800 rpms on the gaser gives me the 18kts at about 10 gph keeping the secondaries at bay. I could live with the 17kts on the MS but understand you feel you are pushing it. So I bottom line is I can do 15 to 16knts with a 2002 or older and have the spacious lower cabin with the V bunk or do 18knts with a 2003 or newer and have a cramped cabin. I like the idea of the more efficient reconfigured hull but am really turned off on the cramped inefficient cabin. I guess we have some thinking to do. I am glad I found this site.
regards Holty